Hydraulic Motor Displacement Calculator


Calculating hydraulic motor displacement is essential for various engineering and industrial applications. This article provides a simple yet efficient calculator to determine displacement accurately.

How to Use

To use the hydraulic motor displacement calculator:

  1. Input the values of piston diameter (D) and stroke length (L).
  2. Click the “Calculate” button to obtain the displacement.


The formula used to calculate hydraulic motor displacement is:


  • D is the piston diameter,
  • L is the stroke length,
  • π is a mathematical constant approximately equal to 3.14159.

Example Solve

Suppose we have a hydraulic motor with a piston diameter of 10 cm and a stroke length of 20 cm. Let’s calculate the displacement:


Q: Why is hydraulic motor displacement important?

A: Hydraulic motor displacement is crucial for determining the volume of fluid displaced per revolution or stroke, which directly impacts the motor’s performance and efficiency.

Q: Can this calculator handle different units of measurement?

A: No, this calculator assumes consistent units for piston diameter and stroke length. Ensure to input values in the same unit for accurate results.

Q: Is the provided formula accurate for all hydraulic motors?

A: Yes, the formula accurately calculates displacement for hydraulic motors with a cylindrical piston configuration.


This calculator simplifies the process of determining hydraulic motor displacement, enabling engineers and technicians to efficiently design and optimize hydraulic systems.

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